A ladder 10 m long is placed against a vertical wall
MATHEMATICS · Multi-part · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry
Problem
A ladder 10 m long is placed against a vertical wall. The top of the ladder reaches the wall at a height such that sinθ=21, where θ is the angle the ladder makes with the ground.
(a) Find the value of θ.
(b) Calculate (1) the height above the ground at which the ladder touches the wall and (2) the horizontal distance of the foot of the ladder from the wall.